Constructor Detail

• SparseOpticalFlow

  protected SparseOpticalFlow​(long addr)

Method Detail

• __fromPtr__

  public static SparseOpticalFlow __fromPtr__​(long addr)

• calc

  public void calc​(Mat prevImg,
                   Mat nextImg,
                   Mat prevPts,
                   Mat nextPts,
                   Mat status,
                   Mat err)

  Calculates a sparse optical flow.

  Parameters:

  prevImg - First input image.

  nextImg - Second input image of the same size and the same type as prevImg.

  prevPts - Vector of 2D points for which the flow needs to be found.

  nextPts - Output vector of 2D points containing the calculated new positions of input features in the second image.

  status - Output status vector. Each element of the vector is set to 1 if the flow for the corresponding features has been found. Otherwise, it is set to 0.

  err - Optional output vector that contains error response for each point (inverse confidence).

• calc

  public void calc​(Mat prevImg,
                   Mat nextImg,
                   Mat prevPts,
                   Mat nextPts,
                   Mat status)

  Calculates a sparse optical flow.

  Parameters:

  prevImg - First input image.

  nextImg - Second input image of the same size and the same type as prevImg.

  prevPts - Vector of 2D points for which the flow needs to be found.

  nextPts - Output vector of 2D points containing the calculated new positions of input features in the second image.

  status - Output status vector. Each element of the vector is set to 1 if the flow for the corresponding features has been found. Otherwise, it is set to 0.

• finalize

  protected void finalize()
                   throws java.lang.Throwable

  Overrides:

  finalize in class Algorithm

  Throws:

  java.lang.Throwable